Attacked by everyone, please give thoughts

[Vladimir]

It's important to note that the reputation hit for having to choose an alliance to break is fairly minor and temporary. Get as many of them as you can and deal with it later. While everyone is at peace you'll be gaining reputation points and it makes your global standing much higher. Negotiations are a breeze when you're allied with 90% of the factions. They won't start going to war until the start of the mid-game and by then your superior negotiating leverage will considerably ease the opening game.